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Weather Conditions for Otter, Illinois : LaSalle County
Issued: 2:01 pm CDT Oct 15, 2026 Latitude: 41.1792007 Longitude: -88.7786846 View on Google Maps

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This Afternoon Tonight Friday Saturday Sunday Monday Tuesday Wednesday
90% chance of thunderstorms on This Afternoon 50% chance of rain on Tonight 40% chance of rain on Friday Sunny on Saturday Sunny on Sunday Mostly Sunny on Monday Mostly Sunny on Tuesday Sunny on Wednesday
High: 67°F Low: 47°F High: 54°F High: 58°F High: 67°F High: 70°F High: 74°F High: 75°F
Low: 34°F Low: 38°F Low: 41°F Low: 43°F Low: 46°F  
Thunderstorms Rain Rain Sunny Sunny Mostly Sunny Mostly Sunny Sunny

Hourly forecast

Otter, il · Next 24 hours · Eastern time (EST/EDT)

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Current Conditions at
PONTIAC MUNICIPAL AIRPT - (KPNT)
72°
Cloudy
as of 2:15 PM CDST
Rel. Humidity: 83%
Dew Point: 66°F
Visibility: 10 Miles
Pressure: 29.91 in.
Flight Rule: VFR
Wind Data
9 MPH
160° South
Cloud Level(s): Scattered at 2300ft, Broken at 4500ft, Solid Overcast at 9000ft
Current Conditions at
LACON/MARSHALL COUNTY - (KC75)
70°
Cloudy
as of 2:15 PM CDST
Rel. Humidity: 83%
Dew Point: 64°F
Visibility: 10 Miles
Pressure: 29.87 in.
Flight Rule: MVFR
Wind Data
5 MPH
160° South
Cloud Level(s): Broken at 1500ft, Solid Overcast at 8000ft
90% chance of thunderstorms This Afternoon This Afternoon... Showers and possibly a thunderstorm. High near 67. South southeast wind 5 to 10 mph. Chance of precipitation is 90%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

50% chance of rain Tonight Tonight... A 50 percent chance of showers, mainly before midnight. Cloudy, with a low around 47. Breezy, with a west northwest wind 10 to 20 mph, with gusts as high as 30 mph.

40% chance of rain Friday Friday... A 40 percent chance of showers after 1pm. Mostly cloudy, with a high near 54. Breezy, with a west northwest wind 15 to 20 mph, with gusts as high as 30 mph.

Mostly Cloudy on Friday Night Friday Night... Mostly cloudy, then gradually becoming clear, with a low around 34. Breezy, with a north wind 10 to 20 mph, with gusts as high as 30 mph.

Sunny on Saturday Saturday... Widespread frost, mainly before 8am. Otherwise, sunny, with a high near 58. North wind around 5 mph becoming calm in the morning.

Clear on Saturday Night Saturday Night... Clear, with a low around 38.

Sunny on Sunday Sunday... Patchy frost before 7am. Otherwise, sunny, with a high near 67.

Mostly Clear on Sunday Night Sunday Night... Mostly clear, with a low around 41.

Mostly Sunny on Monday Monday... Mostly sunny, with a high near 70.

Cloudy on Monday Night Monday Night... Partly cloudy, with a low around 43.

Mostly Sunny on Tuesday Tuesday... Mostly sunny, with a high near 74.

Mostly Clear on Tuesday Night Tuesday Night... Mostly clear, with a low around 46.

Sunny on Wednesday Wednesday... Sunny, with a high near 75.

Illinois' Warnings, Watches, and AdvisoriesIllinois' Watches, Warnings, and Advisories

Sun Almanac for Otter, Illinois
Astronomical Sunrise 17:35 AM?Astronomical sunrise occurs when the Sun is 18° below the horizon and the sky begins to brighten from a completly darkened state.
Nautical Sunrise 18:07 AM?Nautical sunrise (or nautical dawn) is the precise moment when the sun's center is 12° below the horizon in the morning. It marks the beginning of nautical twilight, allowing pilots/mariners to see the horizon.
Civil Sunrise 18:39 AM?Civil sunrise is the moment in the morning when the sun's center is 6° below the horizon. It marks the start of morning civil twilight, providing enough natural light for most, outdoor activities without artificial lighting. It typically occurs roughly 20-30 minutes before actual sunrise.
Sunrise 19:07 AM?Sunrise (or sunup) is the moment when the upper rim of the Sun appears on the horizon in the morning. It marks the end of the twilight phase, often accompanied by distinct atmospheric colors.

Daylight: -1 Hours 08 Minutes?Daylight hours are the period of time between local sunrise and sunset, representing the daily portion of sunlight. These hours change in length based on season, Earth's tilt, and latitude.

Sunset 06:15 PM?The sunset is defined in astronomy as the moment the upper limb of the Sun disappears below the horizon. It marks the end of daylight and is often accompanied by distinct atmospheric colors. It also signals the beginning of twilight.
Civil Sunset 06:42 PM?Civil sunset (or evening civil twilight) occurs when the center of the sun is 6° below the horizon, marking the end of the brightest twilight phase. It typically occurs roughly 20-30 minutes after sunset, providing enough light for most outdoor activities to continue without artificial light.
Nautical Sunset 07:14 PM?Nautical sunset occurs when the sun's center is 12° below the horizon, marking the end of nautical twilight. This phase, following civil twilight, allows the horizon to remain visible, enabling mariners to take accurate star sights for navigation. The sky is dark, but some ambient light remains
Astronomical Sunset 07:46 PM?Astronomical sunrise occurs when the Sun drops to 18° below the horizon. This causes the sky to enter a completly darkened state.

Civil Rise to Set: 0 Hours 3 Minutes
Nautical Rise to Set: 1 Hours 7 Minutes
Astro Rise to Set: 2 Hours 11 Minutes

Click for yearly Sun Almanac for Otter
Moon Almanac for Otter, Illinois
Moon Phase: Waxing Crescent
Moon Illumination: 24%
Moon Age: 4.85 Days
Moon is currently above the horizon
Distance from Moon to Earth: 251,667 miles
Upcoming Lunar Events for
Otter:
Next EventEvent TimeIllum

High Moon:05:43 pm Thu24.9%
Moonset:10:01 pm Thu26.4%
Moonrise:02:15 pm Fri32.3%
High Moon:06:35 pm Fri33.9%
Moonset:10:56 pm Fri35.5%
New Moon: Sat Oct 10
First Quarter: Sun Oct 18
Full Moon: Mon Oct 26
Last Quarter: Sun Nov 1
New Moon: Mon Nov 9
Click for Monthly Moon Almanac